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Hand / fingers · Trigger Finger / Thumb (Stenosing Flexor Tenosynovitis)

Trigger Finger

One of the tendons that bends your finger has trouble sliding through a snug tunnel in your palm. A small swelling or knot on the tendon catches at the tunnel entrance, so the finger clicks, catches, or locks bent and then snaps straight. The tender lump you can feel is in the palm, at the base of the finger — not at the finger joints themselves.

The pulley and tendon get a mismatch — often from repetitive forceful gripping, and it's notably more common if you have diabetes (and sometimes with gout, thyroid problems, or rheumatoid arthritis). It's a mechanical snag, not 'arthritis' of the joint and not something you've damaged by using the hand.

How it typically shows up

A finger or thumb that CATCHES, CLICKS, or SNAPS as it bends and straightens — sometimes LOCKING bent (classically worse first thing in the morning, then loosening through the day) and needing the other hand to pry it straight — with a tender NODULE in the palm at the base of that finger (over the A1 pulley, at the distal palmar crease). This is a MECHANICAL tendon-and-pulley problem, not joint-surface wear: it's distinct from thumb-base (CMC) OA (deep ache at the thumb-base JOINT on pinch, no catching) and from finger (PIP/DIP) OA (hard bony nodes AT the finger joints, stiffness, no triggering). More common with diabetes and repetitive forceful gripping. Honest framing: the conservative ingredients here (a blocking splint, activity change, tendon glides) help early cases, but the definitive treatments are a corticosteroid injection or a small A1-pulley release — both outside an exercise app — so a locked or non-settling finger is routed to a clinician.

How long recovery takes

Be honest with yourself about the stage. Early, mild triggering (catching but you can still straighten it) often settles with a splint that stops the finger making the triggering bend, easing off repetitive gripping, and gentle tendon-gliding moves — give that a fair few weeks. But the treatments that reliably fix it are a steroid injection (which works for most people) or a quick day-case operation to open the tight tunnel.

If the finger is LOCKING and won't release — or it's simply not improving after a fair few weeks — that's the signal to see a hand clinician about an injection or a release rather than keep doing exercises; the exercise side is a helpful add-on, not the cure.

The phased recovery approach

  1. Phase 1 · 1–6 weeks

    Calm

    Calm the catching: a blocking splint that stops the finger making the triggering bend, ease off repetitive forceful gripping, and keep the tendon gliding gently and smoothly — never force through the catch or lock. Splinting + activity change is the spine here; exercise is the adjunct.

    What you get back: fewer catches through the day.

    • Fist & Tendon Glides — 1–2 sets × 3–5 reps · Make a gentle full fist, then straighten the fingers
    • Differential Tendon Glides — 1–2 sets × 3–5 reps · Move slowly through the five shapes: straight, hook (bend the top two joints), full fist, tabletop (bend only the big knuckles), straight fist (curl the tips into the palm)
    • MCP-Blocking Glide (Place-and-Hold) — 1–2 sets × 3–5 reps · With the other hand, hold the affected finger's big knuckle straight
    • Finger Spread — 1–2 sets × 3–5 reps · Rest the hand flat, spread the fingers apart, then bring them together

  2. Phase 2 · 2–6 weeks

    Rebuild

    As the catching settles, restore full smooth movement with isolated blocking glides and the full tendon-glide series, still gentle and pain-free.

    What you get back: a smooth bend with no snag.

    • MCP-Blocking Glide (Place-and-Hold) — 2–3 sets × 8–12 reps · With the other hand, hold the affected finger's big knuckle straight
    • Differential Tendon Glides — 2–3 sets × 8–12 reps · Move slowly through the five shapes: straight, hook (bend the top two joints), full fist, tabletop (bend only the big knuckles), straight fist (curl the tips into the palm)
    • Fist & Tendon Glides — 2–3 sets × 8–12 reps · Make a gentle full fist, then straighten the fingers
    • Finger Lifts (active extension) — 2–3 sets × 8–12 reps · Rest your hand flat on a table, palm down

  3. Phase 3 · 2–4 weeks

    Back to daily life

    Maintain smooth gliding and sensible grip habits so the catch doesn't return; ease off repetitive heavy gripping and keep the tendon moving freely.

    What you get back: gripping freely, catch-free.

    • Differential Tendon Glides — 2–3 sets × 8–12 reps · Move slowly through the five shapes: straight, hook (bend the top two joints), full fist, tabletop (bend only the big knuckles), straight fist (curl the tips into the palm)
    • Fist & Tendon Glides — 2–3 sets × 8–12 reps · Make a gentle full fist, then straighten the fingers
    • MCP-Blocking Glide (Place-and-Hold) — 2–3 sets × 8–12 reps · With the other hand, hold the affected finger's big knuckle straight
    • Finger Spread — 2–3 sets × 8–12 reps · Rest the hand flat, spread the fingers apart, then bring them together

Exact exercises, sets and progression depend on your severity, equipment and goal — this is the shape of the program, not a one-size prescription.

What matters while you recover

  • Stop the trigger (this matters most)

    The biggest levers aren't the exercises — they're stopping the finger from making the triggering bend and easing off what irritates it. A blocking splint that holds the big knuckle straight (worn for several weeks) lets the tendon settle, and cutting back repetitive forceful gripping removes the cause. Move the finger gently and smoothly rather than forcing it through the lock.

  • How much soreness is okay

    This isn't a load-into-pain program. Keep the glides gentle and smooth — don't repeatedly snap the finger through the catch, which keeps it irritated. If the hand is sore for more than about half an hour after, you did too much; ease off next time.

  • Ask about an injection if it's not settling

    If splinting and easing your grip aren't fixing it, the next steps are a corticosteroid injection into the tendon sheath — which works for most people (up to about 93%) — or a small day-case operation to release the tight pulley. Those are a clinician's call and outside what this app does, so it's worth asking about if a few weeks of self-care haven't helped.

Common questions

Why does it lock most in the morning?
Overnight the tendon and its sheath swell a little, so the catch is worst when you first move it; it tends to loosen as you use the hand through the day. That morning lock-and-loosen pattern is classic for trigger finger.
Should I keep forcing it through the catch?
No — repeatedly snapping it through tends to keep it irritated. A blocking splint that stops the finger making the triggering bend, plus easing off heavy repetitive gripping, lets it calm down. Move it gently and smoothly instead of forcing the lock.
Will exercises cure it?
Honestly, the evidence for exercises alone is weak. Tendon glides and a splint can help early, milder cases, but they're an adjunct. The things that reliably resolve a stubborn or locking trigger finger are a steroid injection or a small operation — a clinician decision.
When should I get it looked at?
If the finger locks bent and you have to pry it straight, if it's stuck and won't straighten at all, or if a few weeks of splinting and easing your grip haven't helped — see a hand clinician about an injection or release. Also get urgent help for any hot, spreading, very painful swelling after a cut or bite (that's a different, serious problem).

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